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Related Experiment Video

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Visualization and Analysis of mRNA Molecules Using Fluorescence In Situ Hybridization in Saccharomyces cerevisiae
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Single-Molecule mRNA Detection in Live Yeast.

Tineke L Lenstra1, Daniel R Larson1

  • 1Laboratory of Receptor Biology and Gene Expression, Center for Cancer Research, National Cancer Institute, Bethesda, Maryland.

Current Protocols in Molecular Biology
|April 26, 2016
PubMed
Summary
This summary is machine-generated.

This study presents a method to visualize messenger RNA (mRNA) and transcription in live yeast cells. This technique allows for high-resolution tracking of gene expression dynamics in single cells.

Keywords:
RNASingle-moleculefluorescencelive cellmicroscopytranscription

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Area of Science:

  • Molecular Biology
  • Cell Biology
  • Genetics

Background:

  • Visualizing single RNA molecules in living cells offers insights into mRNA synthesis, movement, localization, and gene regulation.
  • Gene activity is known to be heterogeneous between cells and variable over time within single cells.
  • Yeast provides a powerful genetic model organism for studying mRNA dynamics and addressing mechanistic questions.

Purpose of the Study:

  • To describe a method for visualizing mRNA and transcription in live yeast cells.
  • To enable high-resolution spatial and temporal studies of gene expression in yeast.

Main Methods:

  • Utilizes fluorescently labeled MS2 and PP7 coat proteins.
  • These proteins bind to stem-loop sequences introduced into the gene of interest.
  • Detailed protocols for yeast strain construction, image acquisition, and validation are provided.

Main Results:

  • Enables visualization of single RNA molecules in real-time within living yeast cells.
  • Provides sub-second temporal and nanometer spatial resolution of mRNA dynamics.
  • Facilitates the study of heterogeneous and variable gene activity at the single-cell level.

Conclusions:

  • The described approach is effective for visualizing mRNA and transcription in live yeast.
  • This method advances the study of gene regulation and mRNA dynamics in a model organism.
  • It offers a valuable tool for mechanistic investigations in yeast genetics.